English dictionary



Hint: Wildcards can be used multiple times in a query.

English noun: planetary nebula

1. planetary nebula (object) a nebula that was once thought to be a star with its planets but is now thought to be a very hot star surrounded by an expanding envelope of ionized gases that emit a fluorescent glow because of intense radiation from the star


Broader (hypernym)nebula









Based on WordNet 3.0 copyright © Princeton University.
Web design: Orcapia v/Per Bang. English edition: .
2025 onlineordbog.dk